US Bridges

Mn 169 over Pike River

Good

St. Louis County, Minnesota · 2.7 MI S of W JCT TH 1 · Structure no. 69087

Built
1983
42 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
111 ft
1 main span
Daily traffic
3,347
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 169 over Pike River is a prestressed concrete stringer/multi-beam or girder carrying Mn 169 over Pike River in St. Louis County, Minnesota. It was built in 1983, so it is 42 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,347 vehicles a day, roughly 8% of them trucks, projected to reach 3,600 by 2042. The structure is 111 ft (33.8 m) long and 50 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMn 169
CrossesPike River
Location2.7 MI S of W JCT TH 1
RouteState Highway 169
Coordinates47.74754, -92.38321
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.2 US tons
Inventory rating37.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span106 ft (32.3 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,347 (2022)
Projected traffic3,600 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 169 over Pike River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Mn 169 over Pike River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Mn 169 over Pike River carry?

About 3,347 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Mn 169 over Pike River?

The structure is 111 ft (33.8 m) long with a longest span of 106 ft (32.3 m) and a deck 50 ft wide.

Who owns Mn 169 over Pike River?

It is owned by the State Highway Agency.